NDLI: Modelling and optimization of hybrid PSA/membrane separation processes

Content Provider	Springer Nature Link
Author	Nikolić, Dragan D. Kikkinides, Eustathios S.
Copyright Year	2015
Abstract	The present work proposes a modelling and optimization framework for hybrid pressure swing adsorption (PSA) and membrane processes for gas separations. The hybrid PSA/membrane scheme has been applied on the process of hydrogen production from steam methane reformer off gas. Three different hybrid separation schemes have been considered and analyzed. Maximum overall hydrogen recovery has been achieved for given minimum requirements in product purity, while optimizing various PSA and membrane operating and design parameters: the number of adsorption columns, PSA cycle configurations, the number of pressure equalizations/co-current depressurization steps, multiple adsorbent layers, PSA and membrane feed pressure, purge-to-feed ratio, bed length, carbon-to zeolite ratio, membrane area, thickness, and support thickness. The optimization results have been compared to the optimization results of the PSA only case and the benefits of hybrid separation systems have been assessed in terms of the improvements in the overall hydrogen recovery (~2 %), reduction of adsorption beds size (up to 46 %), concentration of the carbon dioxide and carbon monoxide captured in a separate stream (up to 76 %), and reduction of the carbon dioxide content in the waste gases (up to 74 %).
Starting Page	283
Ending Page	305
Page Count	23
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	21
Issue Number	4
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2015-04-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hybrid processes Pressure swing adsorption Porous membranes Gas separations Modeling Optimization Industrial Chemistry/Chemical Engineering Surfaces and Interfaces, Thin Films Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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